diff --git a/build_projects/dotnet-host-build/CompileTargets.cs b/build_projects/dotnet-host-build/CompileTargets.cs
index 2f5fab5a23..bce8e84bd4 100644
--- a/build_projects/dotnet-host-build/CompileTargets.cs
+++ b/build_projects/dotnet-host-build/CompileTargets.cs
@@ -30,6 +30,8 @@ public class CompileTargets
             { "osx.10.11-x64", "osx.10.10-x64" },
             { "ubuntu.14.04-x64", "ubuntu.14.04-x64" },
             { "ubuntu.16.04-x64", "ubuntu.16.04-x64" },
+            { "ubuntu.14.04-arm", "ubuntu.14.04-arm" },
+            { "ubuntu.16.04-arm", "ubuntu.16.04-arm" },
             { "ubuntu.16.10-x64", "ubuntu.16.10-x64" },
             { "centos.7-x64", "rhel.7-x64" },
             { "rhel.7-x64", "rhel.7-x64" },
@@ -386,10 +388,23 @@ public static BuildTargetResult PackagePkgProjects(BuildTargetContext c)
             var hostNugetversion = hostVersion.LatestHostVersion.ToString();
             var content = $@"{c.BuildContext["CommitHash"]}{Environment.NewLine}{hostNugetversion}{Environment.NewLine}";
             var pkgDir = Path.Combine(c.BuildContext.BuildDirectory, "pkg");
-            var packCmd = "pack." + (CurrentPlatform.IsWindows ? "cmd" : "sh");
             string rid = HostPackageSupportedRids[c.BuildContext.Get<string>("TargetRID")];
             File.WriteAllText(Path.Combine(pkgDir, "version.txt"), content);
-            Exec(Path.Combine(pkgDir, packCmd));
+
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+            {
+                Exec(Path.Combine(pkgDir, "pack.cmd"));
+            }
+            else
+            {
+                List<string> buildScriptArgList = new List<string>();
+                string buildScriptFile = Path.Combine(pkgDir, "pack.sh");
+
+                buildScriptArgList.Add("--rid");
+                buildScriptArgList.Add(rid);
+
+                Exec(buildScriptFile, buildScriptArgList);
+            }
 
             foreach (var file in Directory.GetFiles(Path.Combine(pkgDir, "bin", "packages"), "*.nupkg"))
             {
diff --git a/build_projects/dotnet-host-build/PublishTargets.cs b/build_projects/dotnet-host-build/PublishTargets.cs
index d834b735ef..f3f6ae9820 100644
--- a/build_projects/dotnet-host-build/PublishTargets.cs
+++ b/build_projects/dotnet-host-build/PublishTargets.cs
@@ -123,7 +123,9 @@ public static BuildTargetResult FinalizeBuild(BuildTargetContext c)
                         "win.arm.version",
                         "win.arm64.version",
                         "ubuntu.x64.version",
+                        "ubuntu.14.04.arm.version",
                         "ubuntu.16.04.x64.version",
+                        "ubuntu.16.04.arm.version",
                         "ubuntu.16.10.x64.version",
                         "rhel.x64.version",
                         "osx.x64.version",
@@ -190,7 +192,9 @@ private static bool CheckIfAllBuildsHavePublished()
                  { "sharedfx_Windows_arm", false },
                  { "sharedfx_Windows_arm64", false },
                  { "sharedfx_Ubuntu_x64", false },
+                 { "sharedfx_Ubuntu_14_04_arm", false },
                  { "sharedfx_Ubuntu_16_04_x64", false },
+                 { "sharedfx_Ubuntu_16_04_arm", false },
                  { "sharedfx_Ubuntu_16_10_x64", false },
                  { "sharedfx_RHEL_x64", false },
                  { "sharedfx_OSX_x64", false },
diff --git a/build_projects/dotnet-host-build/TestTargets.cs b/build_projects/dotnet-host-build/TestTargets.cs
index e40f340baa..4935f64daa 100644
--- a/build_projects/dotnet-host-build/TestTargets.cs
+++ b/build_projects/dotnet-host-build/TestTargets.cs
@@ -96,21 +96,24 @@ public static BuildTargetResult RunTests(BuildTargetContext c)
             return c.Success();
         }
 
+        private static bool IsCrossArch(string rid) {
+            if (!String.IsNullOrEmpty(rid))
+            {
+                return (String.Compare(rid, "win8-arm", true) == 0)
+                       || (String.Compare(rid, "win10-arm64", true) == 0)
+                       || (String.Compare(rid, "ubuntu.14.04-arm", true) == 0)
+                       || (String.Compare(rid, "ubuntu.16.04-arm", true) == 0);
+            }
+            return false;
+        }
+
         private static List<string> RunDotnetTestOnTestProjects(BuildTargetContext c, DotNetCli dotnet, string configuration)
         {
             var failingTests = new List<string>();
 
             // Fetch the target RID to determine if we support running tests or not.
             string rid = c.BuildContext.Get<string>("TargetRID");
-            bool fIsCrossArch = false;
-            if (!String.IsNullOrEmpty(rid))
-            {
-                if ((String.Compare(rid, "win8-arm", true) == 0) || (String.Compare(rid, "win10-arm64", true) == 0))
-                {
-                    // We dont support running native tests for cross-architecture builds yet.
-                    fIsCrossArch = true;
-                }
-            }
+            bool fIsCrossArch = IsCrossArch(rid); // We dont support running native tests for cross-architecture builds yet.
 
             foreach (var project in TestProjects)
             {
diff --git a/build_projects/shared-build-targets-utils/Utils/Crossgen.cs b/build_projects/shared-build-targets-utils/Utils/Crossgen.cs
index a07da416ae..89bc982193 100644
--- a/build_projects/shared-build-targets-utils/Utils/Crossgen.cs
+++ b/build_projects/shared-build-targets-utils/Utils/Crossgen.cs
@@ -45,6 +45,7 @@ private string GetCrossgenPathForVersion()
                 return ridCrossgen;
             }
 
+            // TODO-ARM-Crossgen: Add ubuntu.14.04-arm and ubuntu.16.04-arm
             if (_targetRID == "win8-arm")
             {
                 ridCrossgen = Path.Combine(crossgenPackagePath, "tools", "x86_arm", $"crossgen{Constants.ExeSuffix}");
@@ -73,6 +74,7 @@ private string GetLibCLRJitPathForVersion()
 
             string jitPath = Path.Combine(jitPackagePath, "runtimes", jitRid, "native", $"{Constants.DynamicLibPrefix}clrjit{Constants.DynamicLibSuffix}");
             
+            // TODO-ARM-Crossgen: Add ubuntu.14.04-arm and ubuntu.16.04-arm
             if (_targetRID == "win8-arm") 
             {
                 jitPath = Path.Combine(jitPackagePath, "runtimes", "x86_arm", "native", $"{Constants.DynamicLibPrefix}clrjit{Constants.DynamicLibSuffix}");
@@ -228,4 +230,4 @@ public void CrossgenDirectory(string sharedFxPath, string pathToAssemblies)
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/build_projects/shared-build-targets-utils/Utils/SharedFrameworkPublisher.cs b/build_projects/shared-build-targets-utils/Utils/SharedFrameworkPublisher.cs
index cc43eee254..0fe0511890 100644
--- a/build_projects/shared-build-targets-utils/Utils/SharedFrameworkPublisher.cs
+++ b/build_projects/shared-build-targets-utils/Utils/SharedFrameworkPublisher.cs
@@ -47,6 +47,7 @@ public SharedFrameworkPublisher(
 
             // If we are dealing with cross-targeting compilation, then specify the 
             // correct RID for crossgen to use when compiling SharedFramework.
+            // TODO-ARM-Crossgen: Add ubuntu.14.04-arm and ubuntu.16.04-arm
             if ((sharedFrameworkRid == "win8-arm") || (sharedFrameworkRid == "win10-arm64"))
             {
                 crossgenRID = sharedFrameworkRid;
diff --git a/pkg/pack.sh b/pkg/pack.sh
index 1e9ee02038..0bc3ca0a8e 100755
--- a/pkg/pack.sh
+++ b/pkg/pack.sh
@@ -1,14 +1,13 @@
 #!/usr/bin/env bash
 
-init_distro_name()
+usage()
 {
-    if [ ! -e /etc/os-release ]; then
-        echo "WARNING: Can not determine runtime id for current distro."
-        export __distro_rid=""
-    else
-        source /etc/os-release
-        export __distro_rid="$ID.$VERSION_ID-x64"
-    fi
+    echo "Usage: $0 --rid <Runtime Identifier>"
+    echo ""
+    echo "Options:"
+    echo "  --rid <Runtime Identifier>         Target Runtime Identifier"
+
+    exit 1
 }
 
 set -e
@@ -25,6 +24,24 @@ done
 __project_dir="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
 __distro_rid=
 
+while [ "$1" != "" ]; do
+    lowerI="$(echo $1 | awk '{print tolower($0)}')"
+    case $lowerI in
+        -h|--help)
+            usage
+            exit 1
+            ;;
+        --rid)
+            shift
+            __distro_rid=$1
+            ;;
+        *)
+        echo "Unknown argument to pack.sh $1"
+        exit 1
+    esac
+    shift
+done
+
 # setup msbuild
 "$__project_dir/init-tools.sh"
 
@@ -44,7 +61,10 @@ if [ "$(uname -s)" == "Darwin" ]; then
     __targets_param="TargetsOSX=true"
 else
     __targets_param="TargetsLinux=true"
-    init_distro_name
+    if [ -z $__distro_rid ]; then
+        echo "Runtime Identifier not defined"
+        exit 1
+    fi
 fi
 
 __common_parameters="/p:$__targets_param /p:DistroRid=$__distro_rid /verbosity:minimal"
diff --git a/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHost.builds b/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHost.builds
index 933cdb3fdf..f747e1b211 100644
--- a/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHost.builds
+++ b/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHost.builds
@@ -35,10 +35,18 @@
       <OSGroup>Linux</OSGroup>
       <Platform>amd64</Platform>
     </Project>
+    <Project Condition="'$(TargetsLinux)' == 'true' and '$(DistroRid)' == 'ubuntu.14.04-arm'" Include="ubuntu.14.04/Microsoft.NETCore.DotNetHost.pkgproj">
+      <OSGroup>Linux</OSGroup>
+      <Platform>arm</Platform>
+    </Project>
     <Project Condition="'$(TargetsLinux)' == 'true' and '$(DistroRid)' == 'ubuntu.16.04-x64'" Include="ubuntu.16.04/Microsoft.NETCore.DotNetHost.pkgproj">
       <OSGroup>Linux</OSGroup>
       <Platform>amd64</Platform>
     </Project>
+    <Project Condition="'$(TargetsLinux)' == 'true' and '$(DistroRid)' == 'ubuntu.16.04-arm'" Include="ubuntu.16.04/Microsoft.NETCore.DotNetHost.pkgproj">
+      <OSGroup>Linux</OSGroup>
+      <Platform>arm</Platform>
+    </Project>
     <Project Condition="'$(TargetsLinux)' == 'true' and '$(DistroRid)' == 'ubuntu.16.10-x64'" Include="ubuntu.16.10/Microsoft.NETCore.DotNetHost.pkgproj">
       <OSGroup>Linux</OSGroup>
       <Platform>amd64</Platform>
diff --git a/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHost.pkgproj b/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHost.pkgproj
index 0b4fa006ce..b6db556088 100644
--- a/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHost.pkgproj
+++ b/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHost.pkgproj
@@ -34,9 +34,15 @@
     <ProjectReference Include="ubuntu.14.04\Microsoft.NETCore.DotNetHost.pkgproj">
       <Platform>amd64</Platform>
     </ProjectReference>
+    <ProjectReference Include="ubuntu.14.04\Microsoft.NETCore.DotNetHost.pkgproj">
+      <Platform>arm</Platform>
+    </ProjectReference>
     <ProjectReference Include="ubuntu.16.04\Microsoft.NETCore.DotNetHost.pkgproj">
       <Platform>amd64</Platform>
     </ProjectReference>
+    <ProjectReference Include="ubuntu.16.04\Microsoft.NETCore.DotNetHost.pkgproj">
+      <Platform>arm</Platform>
+    </ProjectReference>
     <ProjectReference Include="ubuntu.16.10\Microsoft.NETCore.DotNetHost.pkgproj">
       <Platform>amd64</Platform>
     </ProjectReference>
diff --git a/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostPolicy.builds b/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostPolicy.builds
index e8fdd48cd7..132bf34c3f 100644
--- a/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostPolicy.builds
+++ b/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostPolicy.builds
@@ -35,10 +35,18 @@
       <OSGroup>Linux</OSGroup>
       <Platform>amd64</Platform>
     </Project>
+    <Project Condition="'$(TargetsLinux)' == 'true' and '$(DistroRid)' == 'ubuntu.14.04-arm'" Include="ubuntu.14.04/Microsoft.NETCore.DotNetHostPolicy.pkgproj">
+      <OSGroup>Linux</OSGroup>
+      <Platform>arm</Platform>
+    </Project>
     <Project Condition="'$(TargetsLinux)' == 'true' and '$(DistroRid)' == 'ubuntu.16.04-x64'" Include="ubuntu.16.04/Microsoft.NETCore.DotNetHostPolicy.pkgproj">
       <OSGroup>Linux</OSGroup>
       <Platform>amd64</Platform>
     </Project>
+    <Project Condition="'$(TargetsLinux)' == 'true' and '$(DistroRid)' == 'ubuntu.16.04-arm'" Include="ubuntu.16.04/Microsoft.NETCore.DotNetHostPolicy.pkgproj">
+      <OSGroup>Linux</OSGroup>
+      <Platform>arm</Platform>
+    </Project>
     <Project Condition="'$(TargetsLinux)' == 'true' and '$(DistroRid)' == 'ubuntu.16.10-x64'" Include="ubuntu.16.10/Microsoft.NETCore.DotNetHostPolicy.pkgproj">
       <OSGroup>Linux</OSGroup>
       <Platform>amd64</Platform>
diff --git a/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostPolicy.pkgproj b/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostPolicy.pkgproj
index 3759402707..6607056e8a 100644
--- a/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostPolicy.pkgproj
+++ b/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostPolicy.pkgproj
@@ -37,9 +37,15 @@
     <ProjectReference Include="ubuntu.14.04\Microsoft.NETCore.DotNetHostPolicy.pkgproj">
       <Platform>amd64</Platform>
     </ProjectReference>
+    <ProjectReference Include="ubuntu.14.04\Microsoft.NETCore.DotNetHostPolicy.pkgproj">
+      <Platform>arm</Platform>
+    </ProjectReference>
     <ProjectReference Include="ubuntu.16.04\Microsoft.NETCore.DotNetHostPolicy.pkgproj">
       <Platform>amd64</Platform>
     </ProjectReference>
+    <ProjectReference Include="ubuntu.16.04\Microsoft.NETCore.DotNetHostPolicy.pkgproj">
+      <Platform>arm</Platform>
+    </ProjectReference>
     <ProjectReference Include="ubuntu.16.10\Microsoft.NETCore.DotNetHostPolicy.pkgproj">
       <Platform>amd64</Platform>
     </ProjectReference>
diff --git a/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostResolver.builds b/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostResolver.builds
index 5f7fd16387..edb1a47a0a 100644
--- a/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostResolver.builds
+++ b/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostResolver.builds
@@ -35,10 +35,18 @@
       <OSGroup>Linux</OSGroup>
       <Platform>amd64</Platform>
     </Project>
+    <Project Condition="'$(TargetsLinux)' == 'true' and '$(DistroRid)' == 'ubuntu.14.04-arm'" Include="ubuntu.14.04/Microsoft.NETCore.DotNetHostResolver.pkgproj">
+      <OSGroup>Linux</OSGroup>
+      <Platform>arm</Platform>
+    </Project>
     <Project Condition="'$(TargetsLinux)' == 'true' and '$(DistroRid)' == 'ubuntu.16.04-x64'" Include="ubuntu.16.04/Microsoft.NETCore.DotNetHostResolver.pkgproj">
       <OSGroup>Linux</OSGroup>
       <Platform>amd64</Platform>
     </Project>
+    <Project Condition="'$(TargetsLinux)' == 'true' and '$(DistroRid)' == 'ubuntu.16.04-arm'" Include="ubuntu.16.04/Microsoft.NETCore.DotNetHostResolver.pkgproj">
+      <OSGroup>Linux</OSGroup>
+      <Platform>arm</Platform>
+    </Project>
     <Project Condition="'$(TargetsLinux)' == 'true' and '$(DistroRid)' == 'ubuntu.16.10-x64'" Include="ubuntu.16.10/Microsoft.NETCore.DotNetHostResolver.pkgproj">
       <OSGroup>Linux</OSGroup>
       <Platform>amd64</Platform>
diff --git a/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostResolver.pkgproj b/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostResolver.pkgproj
index 9888d97344..e2f1ba5641 100644
--- a/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostResolver.pkgproj
+++ b/pkg/projects/Microsoft.NETCore.DotNetHost/Microsoft.NETCore.DotNetHostResolver.pkgproj
@@ -37,9 +37,15 @@
     <ProjectReference Include="ubuntu.14.04\Microsoft.NETCore.DotNetHostResolver.pkgproj">
       <Platform>amd64</Platform>
     </ProjectReference>
+    <ProjectReference Include="ubuntu.14.04\Microsoft.NETCore.DotNetHostResolver.pkgproj">
+      <Platform>arm</Platform>
+    </ProjectReference>
     <ProjectReference Include="ubuntu.16.04\Microsoft.NETCore.DotNetHostResolver.pkgproj">
       <Platform>amd64</Platform>
     </ProjectReference>
+    <ProjectReference Include="ubuntu.16.04\Microsoft.NETCore.DotNetHostResolver.pkgproj">
+      <Platform>arm</Platform>
+    </ProjectReference>
     <ProjectReference Include="ubuntu.16.10\Microsoft.NETCore.DotNetHostResolver.pkgproj">
       <Platform>amd64</Platform>
     </ProjectReference>